Quinta Range - Remeha Commercial · PDF fileREMEHA QUINTA RANGE ... with the flow, return, gas...

REMEH

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Condensing Boilers

High efficiency wall hung condensingboiler with ultra low NOx emission

QUINTA RANGE OUTPUTSQ30: 5.6 - 28 kWQ45: 7 - 40 kWQ65: 11 - 61 kWQ85: 14.4 - 84.2 kWQ115: 18 - 115 kW

SEDBUK ‘A’ (Q30, Q45, Q65)

Quinta Brochure July 09 Issue 6 16/7/09 12:30

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Boiler descriptionThe Remeha Quinta Range are wall hung, condensing boilers whichmay also be installed free standing on a suitable frame (option). Theone piece, cast aluminium heat exchanger and other majorcomponents are contained within a sealed air box. This forms themain boiler casing with a removable front section for maintenancepurposes. All electrical and electronic controls are contained withinthe instrument panel mounted behind the drop-down lowerfront panel.

The combined flue gas outlet and combustion air inlet are mountedon the top of the boiler, with the flow, return, gas and condensateconnections located at the bottom.

The boiler is suitable for room-sealed or open flue applications. Ithas been designed for central heating and indirect hot waterproduction. It must be installed on a fully pumped system and issuitable for use on both sealed and open vented installations(minimum operating pressure of 0.3 bar open vented and 0.8bar pressurised.

The pre-mix, down-firing gas burner (NG or LPG) with its gas/airratio control system, ensures clean, trouble free operation withhigher than average efficiencies (of 110% (NCV)) in the condensingmode, combined with ultra low NOx and minimum CO emissions.The standard control package allows actual and set values to beread and adjusted on the built-in digital display which also providesnormal operating and fault code indication. An intelligent,advanced boiler control (abc) continuously monitors the boilerconditions, varying the heat output to suit the system load. Thecontrol is able to react to external “negative” influences in the restof the system (flow rates and air/gas supply problems) maintainingboiler output for as long as possible without resorting to a lock outcondition. At worst the boiler will reduce its output and/or shutdown (shut-off mode); awaiting the “negative” conditions to returnto normal before re-starting.

The ‘abc’ control cannot override the standard flamesafety controls.

The boiler meets the requirements of the EC regulationsand directives:

- 90/396EEC Gas appliances directive

- 92/42/EEC Efficiency directive

- 73/23/EEC Electrical low voltage directive

- 89/336/EEC E.M.C. directive

CE Certification

Remeha Quinta 30 - PIN: 0063BM3043

45/65/85/115 - PIN: 0063BL3253

IntroductionRemeha Quinta Range arecompact wall hung condensingboilers. Lighter and moreefficient, their small dimensionsmake them ideally suited formodular arrangements.

An optional optimising/weather compensating controlsystem is available to ensuremaximum efficiency.

The boilers can be installed onboth new and retrofitinstallations.

Contentspage

Introduction 2

Boiler description 2

Typical boiler construction 3

Efficiency Information 3

Advantages at a glance 4

Operating principle 4

Dimensions 4

Technical data 5

Typical Installation 6

Typical flue systems 7-8

Electrical installations and controls 9-11


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Typical boiler construction1. Automatic air vent

2. Air supply fan

3. Gas combi-block (with governor)

4. Gas injector/venturi (not shown)

5. Cast aluminium heat exchanger

6. Temperature sensor - return

7. Air inlet tube

8. Pressure gauge (not shown)

9. Control panel

10. Facility for incorporating a rematic®weather compensated boiler control

11. Heat exchanger inspection cover

12. Sight glass

13. Combined ignition/ionisation probe

14. Temperature sensor -flow (not shown)

15. Pre-mix burner

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Efficiency informationAnnual efficiencyUp to 109% at Hi (98% at Hs) at an input of 30% and a returntemperature of 30°C.

Heat to water efficiencya. Up to 99% at Hi (89% at Hs) at an average water temperature of 70°C

(80/60ºC) - Quinta 30, 45 & 65.

b. Up to 98% at Hi at an average water temperature of 70°C (80/60ºC)- Quinta 85 & 115.

c. Up to 110% at Hi (99% at Hs) at an average water temperature of 35°C(40/30ºC) - Quinta 30, 45 & 65.

d. Up to 106% at Hi at an average water temperature of 35°C (40/30ºC)- Quinta 85 & 115.

Note: NCV = Hi, GCV = Hs

Application informationThe Quinta Range can be used on all new and refurbishment projects in bothsingle and multiple configurations. Conventional and room-sealed flue systemcapability means that the boiler can be sited almost anywhere within abuilding. The Remeha weather compensators (options) are able to communicatedirectly with the boiler controls (two wire) to make full use of its fullymodulating feature, ensuring that the boiler closely matches the systemdemand at all times. External control systems (BMS) can be interfaced with theboiler to provide on/off, high/low or modulating (0-10v) control options.

The wall hungQuinta from Remeha.

More power in asmaller space.

Quinta 45/65 illustrated


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Operating principleCombustion air is drawn into the closed air box, by a variable speedfan, through the air inlet connection from the plant room (open flued)or from outside via the concentric flue system (room-sealed). On theinlet side of the fan is a specially designed venturi which is connectedto the outlet side of the gas combi block.

Depending on the demand (under the dictates of flow/return sensorand other external/internal control inputs) the electronic control unitdirectly monitors the volume of gas and air being delivered to thepremix burner. This mixture is initially ignited by the combinedignition/ionisation probe which then monitors the state of the flame.Should the flame not ignite or be unstable, within the pre-set safetytime cycle, the controls will shut the boiler down (after 5 attempts)requiring manual intervention to reset the boiler. The digital display willalso indicate a flashing fault code confirming the reason for the failure.

Dimensions

Advantagesat a glance• High efficiency: 110% NCV at

40/30ºC (99% GCV)

• Boiler control: a) Modulating (18-100%)b) High/low (18-100%)c) On/off

• Premix burner forclean combustion

• Low NOx < 25ppm (02=0%, dry)

• Quiet operation <48 dBA

• Digital display

• Data file for storing information

• Remote signalling options

• Cast aluminium heat exchanger

• Easy maintenance

• Built-in calorifier control

• Options for modular control and/or weather compensator

• Control 0-10V signal or volt free

• PC connection

• Advanced boiler control, Remeha’s‘abc’, for reliable heat delivery

• Conventional or “room-sealed” operation

• Cascade packages for up to6 boilers

• Quick and easy installation

• Space saving

• For use with natural gas and L.P.G.(Some models require aconversion kit)

Flow connection 11/4" BSP (m)& 1" BSP (f)

Return connection 11/4" BSP(m) & 1" BSP (f)

Gas connection 3/4" BSP (m)

Condensate connection25 mm o/d (plastic)

Flue gas connection 80 mmi/d (Quinta 45) and100 i/d (Quinta 65/85/115)

Combustion air supplyconnection 125mm (Quinta 45)and 150 i/d (Quinta 65/85/115)

Holes for mounting bracket

Return connection ø 22 mm o/d

Second flow connection ø 22 mm o/d(optional for DHW production with3-way valve

Flow connection ø 22 mm o/d

Gas connection ø 15 mm o/d

Condensate connection 25 mm o/d(plastic)

Combustion air supply connectionø 125 mm i/d

Flue gas connection ø 80 mm i/d

Holes for mounting bracket

Air vent discharge

Quinta 30

Quinta 45/65/85/115

Dimension 'A'Quinta 45 65 = 360Quinta 85/115 = 452

'A'


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Boiler type Quinta 30 Quinta 45 Quinta 65 Quinta 85 Quinta 115

General

Casing colour BS RAL 9016

Boiler control options (External input) On/off, High/low, Analog 0-10V

(Two wire control) Communicating Modulation

Nominal output (80/60ºC) kW 5.6 - 28.0 8.0 – 40.0 12.0 – 61.0 14.1 - 84.2 16.6 - 107

Nominal output (40/30ºC) kW 5.9 - 29.6 8.9 – 43.0 13.3 – 65.0 15.8 - 89.5 18.4 - 114

Nominal input (GCV / Hs) kW 6.3 - 31.6 9.1 – 45.7 13.6 – 68.8 16.2 - 95.3 19.1 - 123.2

Nominal input (NCV / Hi) kW 5.7 - 28.5 8.2 – 41.2 12.2 – 62.0 14.7 - 86.0 17.2 - 111

Weight dry kg 43 57 64 72 74

Noise level at 1M from boiler dBA <44 <48 <52.5

Gas and flue details

Min/max Inlet pressure natural gas mbar 15 - 50 17 – 30 17 – 30 17 - 30 17 - 30

Min/max Inlet pressure propane mbar 37 - 50 37 - 50 37 - 50 37 - 50 37 - 50

Gas consumption (natural gas) m3 /h 0.6 - 3.2 1.0 – 5.0 1.5 – 7.5 1.5 - 9.1 1.8 - 11.7

Gas consumption (propane) m3 /h 0.3 - 1.2 0.3 - 1.7 0.5 - 2.5 0.6 - 3.3 0.66 - 4.25

NOx emission (expected seasonal) mg/kWh <39

Residual fan duty Pa 100 150 100 160 220

Mass flue rate kg/h 10 - 48 14 - 69 21 - 104 23 - 138 29 - 187

Water side

Flow temperature maximum ºC 100 (110)

Flow temperature operating ºC 20 - 90

Operating pressure min open vented bar 0.3

min pressurised bar 0.8

max bar 3.0 3.5 4.0

Water contents ltr 3.1 5.5 6.5 7.5 7.5

Water resistance at 11°C ▲▲t mbar 460 300 430 460 826

Water resistance at 20°C ▲▲t mbar 140 90 130 140 250

Electrical

Main supply V/Hz 230 / 1 / 50

Electric rating W 46 30 - 85 30 – 90 30 - 160 40 - 240

Insulation class IP 20 20 20 20 20

The products of combustion in the form of hot flue gases are forced through the heat exchanger,transferring their heat to the system water (the flue gas temperature is reduced to approximately 5°Cabove the temperature of the system return water) then discharged via the condensate collector,vertically through the 80/125 mm (Quinta 30/45) or 100/150 mm (Quinta 65/85/115) combinedflue/air connection to atmosphere. Because of the low flue gas exit temperature there will be a vapourcloud formed at the flue gas terminal – this is not smoke, simply water vapour formed during thecombustion process. If the controls allow the flow and therefore return temperature to fall below dewpoint (55°C) this water vapour will begin to condense out in the boiler transferring it’s latent heat intothe system water, increasing the output of the boiler without increasing gas consumption.Condensation formed within the boiler and flue system is discharged from the boiler to an externaldrain via the drain pan/siphon supplied.

Technical data


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Single boiler withlow loss header

Multiboiler

Single boiler

Typical installation

With DHW-Remeha priority - Quinta 45/65

Showing Quinta 45/65/85/115(Quinta 30 flow and return connection are reversed)

For Quinta 85/115 use a DHW primary pump


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Concentric room-sealed applications

Multiboiler withlow loss header(open tube sitefabricated)

Typical flue systems

Quinta 30 Quinta 45 Quinta 65 Quinta 85 Quinta 11580/125mm 80/125mm 100/150mm 100/150mm 100/150mm

max eq. length m 20 16 13 13 7

eq. length bend 45° m 1.2 1 1 1 2

eq. length bend 90° m 4 2 2 2 3

Calculation data – room-sealed applications

Quinta 30/45 Quinta 65/85 Quinta 115

No. of Boilers 2 3 4 5 6 2 3 4 5 6 2 3 4 5 6

Low Loss Header Dia mm 100 125 150 150 200 150 200 225 250 250 150 200 250 250 300

Connecting Pipework “A” mm 42 42 50 50 50 50 65 80 80 100 50 65 80 100 100

Connecting Pipework “B” mm 50 50 65 80 80 65 80 100 125 125 80 100 125 125 125

Dimension "A" mm 300 375 450 450 600 450 600 675 750 750 450 600 750 750 900

Dimension "B" mm 350 425 500 500 650 500 650 725 800 800 500 650 800 800 950

VRS roof mountedroom-sealedterminal

Quinta 65/85/115100/150 System

Quinta 30/4580/125 System

Based on 80°c/60°c FlowBoiler side 20°ΔT/System Side 11°ΔT


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Conventional flue

CLV system(twin pipe - two zone)

For further options see flue booklet.- Please note that the maximum flue length is calculated on the flue diameter stated.

Flue lengths will be increased using larger diameter flue pipe.- Please contact our technical department for assistance if required.

Calculation data – conventional flue

Calculation data – different pressure zones

Bird guard and reduction cone

Bird guard and reduction cone

Bird guard

Quinta 30 Quinta 45 Quinta 65 Quinta 85 Quinta 11580mm 80mm 100mm 100mm 100mm

max eq. length m 40 33 27 24 19

eq. length bend 45° m 1.2 1.2 1.4 1.4 1.4

eq. length bend 90° m 4 4 4.9 4.9 4.9

Quinta 30 Quinta 45 Quinta 65 Quinta 85 Quinta 11580mm 80mm 100mm 110mm 125mm

max eq. length m 20 28 18 22 58

eq. length bend 45° m 1.2 1.2 1.4 1.5 1

eq. length bend 90° m 4 4 4.9 5.4 1.7


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GeneralThe Remeha Quinta Range is supplied asstandard with electronic control and flameionisation safety controls, with a speciallydesigned microprocessor at the heart of thecontrol system.

SpecificationsElectrical supplyThe Remeha Quinta Range must have apermanent 230V-50Hz single phase supply ratedat 6.3 amps. The control unit is not phase/neutral sensitive.

Control boxManufacture: Gasmodul

Model: MCBA 1461 D

Supply voltage: 230 V/50 Hz

Electrical rating: 10 VA

Pre-purge time: 0.3 seconds

Post-purge time: 10 seconds

Safety time: 3 seconds

Anti-hunting time: 150 seconds

Pump run on (HTG): 1 -15 minutes

Pump run on (DHW): 5 minutes

Fuse specificationThe boiler is protected by fuses:

- on the main power supply located in the euroconnector socket rated at 6.3 amps (slowacting).

- control circuit 230 volt, 2 amps (fast acting).

- control circuit 24 volt d.c., 4 amps (slow acting).

Boiler temperature controlThe Remeha Quinta Range has electronictemperature control with flow and returntemperature sensors.The flow temperature can be adjusted between20 and 90°C.

High limit temperature protectionThe high limit, temperature protection deviceswitches off and locks out the boiler when theflow temperature exceeds the high limit set point(adjustable). When the fault is corrected theboiler can be restarted by using the reset key onthe control panel.

Low water protection (flow and content) The Remeha Quinta Range are supplied with alow water protection on the basis of temperaturemeasurement. By modulating back at themoment that the water flow threatens to fall toolow, the boiler is kept operating for as long aspossible. In the event of low flow (F/R ▲▲t > 45°C)the boiler will shut off and not lockout. If theboiler is fired dry it will go to lockout (code 18).

External connectionsAll external connections (except rematic® 2945C3) are made on the 24 way terminal strip,located in the instrument box at the bottom ofthe boiler.

Electrical installation and controls

Boiler run volt free (closes on run)

Common alarm volt free (opens on failure)

Boiler pump or system pump (max. 1Amp)

DHW diverting valve or primary pump230V signal to BMS power supply live

External interlock - volt free

DHW sensor or volt free thermostat

High / low (2nd stage) or outdoor sensor

ON / OFF (1st stage)

0-10V or modulating controller


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Boiler controlThe Remeha Quinta Range can be controlledusing one of the following methods

Modulating (two wire control)

When using the optional Remehacompensating controllers the heat outputmodulates between the minimum and maximumvalue on the basis of the boiler flowtemperature sensor. This applies to both singleand multiple boiler installations, under thedictates of a room and/or outsidetemperature sensor.

Celcia 20 - Optimising room/outside weathercompensating control for single boiler. Control issupplied as standard for room compensation. Foroutside weather compensation the optional o/ssensor must be installed and connected. Controlcommunicating with the boiler directly via twowire interface.

Celcia MC4 - In conjunction with Celcia 20 canprovide step control for multi boiler installationof up to four boilers.

Analog control (0-10 volt d.c.)

The heat output modulates between theminimum and the maximum values on the basisof the voltage supplied by an external analog (0-10V) input.

- Temperature based (20 to 90°C). To set theratio between voltage and the desired flowtemperature, see the graph below.

- Output based - fixed parameters (18 to 100%),see the graph below.

0 volt = boiler off

0.5 - 1.8 volt = heat input 18%

1.8 volt - 10 volt = boiler modulates between 18and 100% on demand.

On/off control (1 x no volt switched pair)

The heat output modulates between theminimum and the maximum value based on theset flow temperature.

High/low control (2 x no volt switched pairs)

The heat output is controlled between part load(18% adjustable) and full load, by means of atwo-stage controller.


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Priority DHW controlTemperature control With a Remeha temperature sensor or witha standard (volt free) DHW thermostat.Note: will only provide a setting and read outfacility with the sensor option.

Primary flow control

- With a three-way diverting valve. (NotQ85/115)

- With a DHW pump.

- Untimed (available 24 hours a day).

System pumpA system pump can be connected to the boiler(230-1-50 max. 1 amp). If the system pumprequires more than 1 amp, terminals can only beused to switch a pump relay.

System waterBefore operation the system should be flushedand filled with mains cold water. As the heatexchanger is aluminium, if water treatment isconsidered a max. pH level of 8.5 MUST NOT BEEXCEEDED. Remeha recommended treatmentsare - Sentinal ‘X-100’® or Fernox F1®.

Frost protection Install the boiler in a frost-free room. The built-in frost protection system is activated asfollows: Below 7°C - system pump is switchedon if connected to boiler. Below 3°C - boiler isswitched on, when the flow temp reaches 10°Cthe boiler and pump switch off.

NOTE: This control is designed to protect theboiler - for full system protection use a frostthemostat or a weather compensator.

Remote alarm and boilerrun indicationAs standard the boiler is supplied with 2 x voltfree indicators - Common alarm signal (opens onalarm) and boiler run signal (closes on Boilerrun). Maximum 230 volts, 1amp capacity each.

Safety interlockAs standard the boiler is supplied with aninterlock carrying a 24 volt boiler control circuit.


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Broag Ltd. Head Office

Remeha House

Molly Millars Lane

Wokingham

Berkshire RG41 2QP

T: 0118 978 3434

F: 0118 978 6977

E: [email protected]

www.remeha.co.uk

Remeha is committed to carbon offsetting

The data published in this technical sales leaflet is based on the latest information (at date of publication) and maybe subject to revisions. It should be read in conjunction with our full technical brochure (available on request). Wereserve the right to continuous development in both design and manufacture, therefore any changes to thetechnology employed may not be retrospective, nor may we be obliged to adjust earlier supplies accordingly. Issue 6 date: 20/07/09


Quinta Range - Remeha Commercial · PDF fileREMEHA QUINTA RANGE ... with the flow, return, gas...

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Transcript of Quinta Range - Remeha Commercial · PDF fileREMEHA QUINTA RANGE ... with the flow, return, gas...